Selling Vintage equipment

 How do I determine what is a fair price to sell equipment? I have several vintage pieces that I priced based on Ebay but I'm not sure that is the best route to go. I have an interested buyer but some items are listed as low as 950.00 bucks on Ebay--what is a happy medium? I took the equipment to an audio show and they offered nearly pennies for each piece, definitely not interested in making nothing. Any suggestions would be helpful!